Professional-grade spot weld cutters totally drill-out spot welds easily, with little or no grinding needed to finish the job. Some of our spot weld cutters have a self-centering pilot drill bit to prevent "drill walking" or skipping, and our double-ended spot weld cutter lets you drill twice as many holes as you could with a single-ended cutter. Spot weld cutters are available in 1/2" and 3/8" diameters, as well as high-speed steel, M2 steel, or faster and more durable super-alloy cobalt.